Tip #8 : Implement metered billing with Google Sheet

Tip #8 : Implement metered billing with Google Sheet

Hello everyone,

We've been sharing a tip every week to address specific business scenarios which can be implemented for your subscription business. Last week, we shared a tip about integrating online form builders with Zoho Subscriptions. This week, we will be looking at how you can implement metered billing in Zoho Subscriptions with Google Sheet.

Business Scenario:
Metered Billing  is the concept of charging your customers based on their usage of a product of service. With Zoho Subscriptions, you can charge your customers for a base plan initially and then charge an additional fee based on their usage using metered billing.

Generally, when a business wants to automate the metered billing process, they should have a back-end server that handles the metered billing readings. Once the reading is recorded, the back-end server has to process the difference between the last recorded reading and the current closing reading. If the customer has exceeded the base limit, the back-end server makes an API request to Zoho Subscriptions to update the invoice and charge an additional fee.

Let's consider the following scenario to understand this better. Zylker Electro provides electricity services to residential areas. They have a meter installed in all the houses of the residential area to record the power consumption. Every month, a Zylker personnel visits the houses in the residential area to note down the meter reading. Then, the difference between last month's meter reading and the current month is calculated. If the customer has consumed more than 500 units of power, they will charge the customer an additional 12 cents per unit.

To automate the above process, Zylker has to build a back-end server that will:
  • store the meter readings;
  • calculate the power consumed for every month; and
  • charge the customers accordingly.
Instead of building a back-end server, you can automate the process using the Custom Functions in Zoho Subscriptions and Google Sheets. With the help of Google Sheets, you can note down all the metered readings every month. Later, you can use Google App Scripts to fetch the readings and update the pending invoice using the Custom Functions.

How can you do it?

You can use Google Sheets to note down the readings every month (similar to the image shown below).




Field
Description
Last Recorded Reading
The meter reading at the end of the previous month.
Closing Reading
The meter reading at the end of the current month.
Status
The field is used to specify whether the invoice for a customer has been updated in Zoho Subscriptions or not.
ID
Unique Ids that are used to map the customers between Google Sheets and Zoho Subscriptions.

Google allows us to access and edit the data in spreadsheet with the help of Google Scripts. Coming back to the scenario, every month a Zylker personnel will record the readings in the Google Sheet. With Zoho Subscriptions, you can configure a custom function to run for the invoices in the Pending status. You must configure the Custom Function in such a way that:
  1. it fetches the meter readings from Google Sheets using Google script;
  2. processes the data and adds an additional charge to the invoice, if needed (based on the consumption);
  3. updates the Status in Google Sheets as Updated; and
  4. updates the Last Recorded Reading with current month's closing reading.
Once the custom function executes successfully, the invoice will be updated with the additional charge. The value in the Status field of the Google sheet will also be updated.

Getting started with Google Apps Scripts:

 Google Apps Scripts provides you with feature-rich APIs that allow you to build you own web applications. For our scenario, we will be using the Spreadsheet APIs to fetch and edit the spreadsheet document. We will create two scripts:
  1. The first script will be used to fetch the last recorded reading and the closing reading of a customer.
  2. The second script for changing the Status field of the customer once the invoice is updated.
To create a script in Google App Scripts:
  1. Go to and click the New Script option on the top-left corner.
  2. Copy the scripts provided above and modify it to suit your needs.
  3. Once you are done, click the Publish option on the top and select the Deploy as web app option.
  4. Provide the project name.
  5. Choose Anyone, even anonymous in the Who has access to the app dropdown.
  6. Click the Deploy button.
  7. Save the Web app URL which will be displayed on the screen for future reference.
Once the Google app scripts are successfully deployed:
  1. Create a new Custom Function in Zoho Subscriptions.
  2. Choose the Module as Invoice and Predefined event as Invoice created.
  3. Copy the Custom function from this GitHub link and modify it as per your requirements.
  4. Save the Custom Function and you are good to go.
Found this useful? Try it out for your subscription business and let us know. If you have any queries, feel free to comment below. We are here to answer them.

Cheers,
Sasidaran K,
The Zoho Subscriptions Team.

    • Sticky Posts

    • Tip #4 : Refer and Earn Workflow system for your Subscription Business

      Hello everyone, We've been coming up with a tip every week to address specific business scenarios which can be implemented for your business. In continuation to the previous post, this week we will be seeing about how you can implement the Refer and Earn Workflow system to acquire more customers. Why are Referrals important? Customer Acquisition is crucial for any business to sustain itself in a constantly evolving market. It involves persuading new consumers to purchase your products. Customers

    • Tip #2 - Cancellation of Offline Subscriptions based on the Expected Payment Date

      Hello everyone, As you all know, we are coming up with a custom function workflow every week to address specific business scenarios. In continuation of this previous blog, this week we will be seeing about Cancellation of Offline Subscriptions based on the Expected Payment Date. Business Scenario: In general, for any business, the customers make payments via online as well as offline. In case of subscription where the automatic collection of charge is enabled (aka online subscription), the customer's

    • Tip #3 : Send SMS Reminders for your Subscription Business

      Hello everyone, As you all know, we are coming up with a tip every week to address specific business scenarios. In continuation to the previous blog, this week we will be seeing how you can use SMS reminders for your Subscription Business. Using SMS messages for your Subscription Business: While managing your subscription business, more often than not, you need to keep your customers informed about upcoming renewals, payment reminders and cancellations. By keeping them informed in advance, you can

    • Tips And Tricks - Announcement

      Hello everyone, Every business is unique and each of them follows a specific workflow. While managing your customers' subscriptions with Zoho, you might have some needs unique to your business. Custom Functions helps you address such needs. This is a start to a series of posts, where we will be coming up with a custom function workflow every week that addresses specific business scenarios. Watch this space for further updates! Also, if you have any specific business scenario which needs to be addressed,

    • Tip #6 : Accessing external URLs from Zoho Subscriptions

      Hello everyone, We have been sharing a tip every week to address specific business scenarios which you can implement for your subscription business. Last week, we shared a tip about implementing the Approval Workflow system. This week, let's look at how you can access external URLs with the help of Custom Link. Business Scenario: Every business functions differently and has its unique requirements. At times, businesses might want to access other websites or applications by appending specific information

    • Recent Topics

    • Hidding/excluding specific picklist options from filter

      Hi. Is it possible to hide/exclude specific picklist options from this filter? I don't want them to be shown when someone tries to filter in the leads module

    • Add Attachment Support to Zoho Flow Mailhook / Email Trigger Module

      Dear Zoho Support Team, We hope you are well. We would like to kindly request a feature enhancement for the Mailhook module in Zoho Flow. Currently, the email trigger in Zoho Flow provides access to the message body, subject, from address, and to address,

    • Zoho DataPrep switching Date Format

      When using a pipeline that is importing Zoho Analytics data into Zoho DataPrep, the month and day of date fields are switched for some columns. For example, a Zoho Analytics record of "Nov. 8, 2025" will appear in Zoho DataPrep as "2025/08/11" in "yyyy/MM/dd"

    • Subforms to Capture Multi-Row Data in Job Sheets

      Subforms transform your job sheets from simple checklists to powerful, data-rich forms. In field service work — whether maintenance, inspection, installation, or repair — a single job can involve multiple repeatable entries: readings, parts used, activities

    • 年内最後のユーザー向けイベント：5名限定！ 課題解決型ワークショップイベント Zoho ワークアウト開催のお知らせ (12/18)

      ANNOUNCEMENT 1 REPLY INSIGHTS ユーザーの皆さま、こんにちは。Zoho ユーザーコミュニティチームの中野です。 12月開催のZoho ワークアウトについてお知らせします。 今回はZoomにて、オンライン開催します。 参加登録はこちら（無料） https://us02web.zoom.us/meeting/register/QHn6kJAcRs-znJ1l5jk0ww ━━━━━━━━━━━━━━━━━━━━━━━━ Zoho ワークアウトとは？ Zoho ユーザー同士で交流しながら、サービスに関する疑問や不明点の解消を目的とした「Zoho

    • Add "Fetch Composite Item" Action for Inventory

      I want to make a Flow that uses information returned in the GET call for Composite Items, and it's not currently available in Zoho Flow. Please consider adding this functionality.

    • Adress Labels for sending of the oder und barcode

      We want to print with my address labels to stick on the order of the ware can. there are these options?

    • printing individual labels - Dymo LabelWriter

      I am trying to print individual labels to my Dymo LabelWriter - has anyone done this? Latest Update (December 2025): The Canvas Print View is now available! We encourage you all to try it out and share your feedback with us. Learn more here: Zoho CRM

    • Zoho Creator for Agriculture

      Greetings, I am starting to work on  Zoho Creator specifically for the agricultural field, any recommendations, tips or ideas that might be helpful ? Also, if you are interested by any means in working on such project, kindly contact me. The project is

    • Custom Print Layout

      I would like to create a custom print layout of a Lead or Contact. Is there a way to do that? What I mean is that if I'm viewing a specific lead or contact I'd like to be able to print or export that lead/contact and only print and/or export certain information.

    • Print View

      Nothing happens when I'm in a module , ie; Contacts, and I hit the Print View Button. Even when it does come up and say "loading", nothing loads

    • Get Holiday ready with Zoho Mail's Offline mode

      With the holiday season right around the corner, this is the perfect time to get ready to unplug, relax, and enjoy a well-deserved break. In addition to preparing yourself, you can also make sure your organization members are set for their time away from

    • Zoho Flow Credits

      Hi , I would like to ask the reason why every time I added plus credit but few days later I will return back to default? (as below I add credit to 3000 but today It change back to 1000) Most important is, when the credit fully used, not any reminder to

    • Zoho CRM Kiosk issues

      Firstly this is for a system on the AU servers if that makes a difference. Issues are as follows (For Kiosk): 1. Re-ordering fields in the screen builder is broken. The fields seem to be re-ordering themselves, unless you order everything by moving the

    • Zoho Books emails suddenly going to Spam since 11 Nov 2025 (Gmail + now Outlook) — anyone else?

      Hi everyone, We migrated to Zoho Books in July 2025 and everything worked fine until 11 Nov 2025. Since then, Zoho Books system emails are landing in customers’ Spam (first Gmail, and now we’re seeing Outlook/Office 365 also starting to spam them). Impacted

    • Adding Multiple Files to a Zoho Vault Entry

      There is a old blog post talking about adding multiple file attachments to one Zoho Vault Secret: https://www.zoho.com/blog/vault/introducing-new-features-in-zoho-vault-powerful-password-sharing-wider-storing.html Is that still possible, I can see how

    • Zoho Voice lance BYOC (Bring Your Own Carrier) : intégrez votre opérateur

      Pour accompagner sa croissance, une entreprise a besoin d’une infrastructure téléphonique flexible et évolutive. Les solutions de téléphonie s’adaptent aux exigences du centre de contact, tout en intégrant aisément les opérateurs locaux de votre choix.

    • Email Template Edits Not Saving

      I can make an edit, click save, and see the blue bar annimation at the top, but the edits don't actually save. Important, because my email templates are now broken and clients are receiving bad emails. Tried on Chrome, Firefox and IE.

    • Default Ticket View - Table?

      Guys, We mostly use the table view to queue tickets. Maybe I am missing it - but how can I set that view as 'default" for all our agents? Thanks JV

    • Duplicate customers being created in Desk

      Hi I've trying to work out why I've getting duplicated customers being created in my desk. I have an external booking system that generates an email when I get a customer booking a job. A booking email gets sent to Desk where I manage the booking and

    • Can I have different users see different pick list values for Potential Stage?

      We have some users focusing on new business and others focusing on existing business, and they follow different sales processes/cycles, so we would like them to see different pick list values for Stage (eventually leading up to Closed Won/Lost in both cases).   And just to keep it interesting - some of these users will of course do a combination, so would need to see one pick list for their New business potentials and a different pick list for their Existing business ones.   Salesforce does this

    • Links in Instagram

      Hi there, I have been using Later for a while now but keen to come back to Zoho Social as Later doesn't offer tagging of pages on Facebook but they offer something Zoho doesn't. You can add a link to your bio which opens up your profile feed where images

    • Tracking Snippet not working in Zoho Marketing Automation!

      First off, the fact that you have to wait about 12-24 hours for every response is terrible. How are we supposed to conduct business? Second, we have been trying for several days to get the Tracking Code Snippet in marketing automation to work, to no avail.

    • email moderation issue when email is sent in the name of a mail group

      Symptom: an email that is sent by a mail group moderator in the name of a moderated mail group is held back for approval. Reproduction: Create a moderated mail group with members and moderators. Allow that mails can be sent in the name of the group (extended

    • Is there any way to send an Excel received by email to Dataprep?

      Every day I receive an email alert with an Excel file that I want to process through a Dataprep pipeline. To do this, I need to: -Save the file to disk -Open the pipeline -Run the pipeline -Update the source -Several clicks to select and open the saved

    • Recruit paid support?

      Hi all, Could anyone who has paid support package advise if it provides value for money with regards to support response times? Exploring the idea as unfortunately when we have faced issues with Recruit it has been a 7+ day timescale from reporting to

    • Using IMAP configuration for shared email inboxes

      Our customer service team utilizes shared email boxes to allow multiple people to view and handle incoming customer requests. For example, the customer sends an email to info@xxxx.com and multiple people can view it and handle the request. How can I configure

    • Add Lookup Field in Tasks Module

      Hello, I have a need to add a Lookup field in addition to the ones that are already there in the Tasks module. I've seen this thread and so understand that the reason lookup fields may not be part of it is that there are already links to the tables (

    • Hotmail is blocking the zoho mail IP

      Greetings, Since last Tuesday (5 days ago today) I wrote to Zoho support and I still haven't received a single response (Ticket ID: 2056917). Is this how you treat people who pay for your email service? I am making this public so that those who want to

    • Read webpage - MSXML2.ServerXMLHTTP

      I have the following VBA script, put together from various sources (mainly zoho forum/help/support, so it once worked, I guess): private Sub GetListOfSheets() Dim url As String Dim xmlhttp As Object Dim parameters As String Dim html As String range("B1").value

    • Zoho Creator Form Search

      I'm new to Zoho Creator and so far i do like it but im shocked there seems to be no easy way to add a search function and/or navigation to there forms as this readily available in every platform i have used in the past. Anyway i have a form which i have

    • How to setup DKIM / SPF in Zoho Mail

      Hello there! I'm having a hard time understanding how to setup the TXT records for SPF and DKIM with Zoho Mail. I'm following the instructions here: https://www.zoho.com/campaigns/help/setup-spf-dkim.html Specifically, when it comes to the value for the

    • Mass update cant trigger a workflow?

      Hello there, Is this a normal Creator behaviour? In a report, if I manually edit each data row, it will pass those changes to all other reports. However, if I perform a Mass Update on a few data rows at once, the new data is not pushed to other reports.

    • Exciting Updates to the Kiosk Studio Feature in Zoho CRM!

      Hello Everyone, We are here again with a series of new enhancements to Kiosk Studio, designed to elevate your experience and bring even greater efficiency to your business processes. These updates build upon our ongoing commitment to making Kiosk a powerful

    • search and Smart Bar both missing in Mail

      One of the users on my account does not have the search bar at the top right or the Smart Bar at the bottom left of the desktop Mail app. Any ideas how to get those back?

    • "Wrong password or login" Problem to configure Zoho on MAIL App on my Macbook

      Hi, I'm having problems to configure my e-mail on my MAIL App(Macbook pro). My e-mail is hari@trespontoum.net Actually was working perfectly, and still working on my Iphone. My MAIL App prompt me that my login or password is wrong. I tried to change 3

    • Remote Control Functionality During Screen Sharing in Zoho Cliq

      Hello Zoho Cliq Team, We would like to request the addition of remote control functionality during screen sharing sessions in Zoho Cliq. Currently, while screen sharing in Cliq is very useful, it lacks the ability for another participant to take control

    • Looking for best practices to import data from SAP Business One (on-prem) into Zoho Analytics via Zoho DataPrep / Databridge — daily automated schedule

      Hi all, I’m using SAP Business One on-prem (SQL Server / or HANA — depending on DB backend) as our ERP. I want to build a pipeline that, every morning at 9:00 AM IST: pulls transactional data (invoices, customers, products, stock, etc.) from SAP B1, loads

    • Let us add Lookup fields in the Blueprint Transitions

      We are unable to add Lookup Fields in the blueprint transitions in Zoho Desk, we wanted to make it a requirement for our workflow but since it's not available in the transition we cannot. The lookup field exists in the Layout: But it cannot be added/selected

    • Zoho Projects API Scope for Issue Attachments

      I try to download issue attachments via the API, unfortunately I always get the following error code when trying to download the file from the supplied URL: {"ERROR_MESSAGE":"INVALID_OAUTHSCOPE","ERROR_CODE":401} indicating an auth scope error. I've tried

    • Next Page